Yes, the Delkin Devices PRIME SD V60 128GB is compatible with the Nikon Z6 III.
Delkin PRIME SD is a Video Speed Class V60 card (280 MB/s read / 105 MB/s write rated). Nikon Z6 III's SD slot minimum for 4K60 is a literal 250 MB/s sustained write (not a V-class-equivalent figure, per Nikon's own manual) -- this card's real 105 MB/s write cannot meet that. Works for the 4K30 mode (45 MB/s floor).
Limitation
Does not meet Nikon Z6 III's 4K60 mode (requires 250 MB/s literal sustained write per Nikon's manual) -- this card's real sustained write is 105 MB/s. Works for 4K30 and all lower-bitrate SD-slot modes.
“Nikon Z6 III product page: SD card slot requires UHS-II; V90 UHS-II cards at 250+ MB/s meet the slot standard and provide sufficient write performance for 4K video recording.”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)